Getting a cam installed and my local shop says I MUST send the ECM off to be unlocked? Says it has to physically be opened up for some reason...
Anyone else heard of this?
Getting a cam installed and my local shop says I MUST send the ECM off to be unlocked? Says it has to physically be opened up for some reason...
Anyone else heard of this?
Yes, most late model GM/Dodge ecm's need an unlock, perfectly normal.
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
What specific vehicle are you working with?
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Sorry... 2018 Tahoe Premier RST
Tahoe_Deets.png
a PHYSICAL "send the ecm off in the mail" unlock though?? How does this situation differ vs buying credits and unlocking like I did with my P59 from a 2006 LQ4?
Sending the computer in is not required on a 2018 Tahoe, you can buy 4 credits and tuning it like you would anything else. Just need to be connected to the internet the first time you read the file.
The TCM on the 8 speed is a different story, that requires an unlock service if you wish to tune the TCM.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Yup. ECM doesn't need to be sent off, tcm does.
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
You can read more about the T87A tcm service here https://www.hptuners.com/product/gm-t87a-tcm-services/
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
Awesome guys, thanks so much for the clarification!!
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